<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>登录页面</title>
</head>
<body>
<div>
    <h1>登录页面</h1>
    <input type="text" v-model="user.username" placeholder="请输入用户名">
    <input type="password" v-model="user.password" placeholder="请输入用密码">
    <input type="button" value="登录" @click="login()">
</div>

<script src="https://cdn.bootcdn.net/ajax/libs/axios/0.21.1/axios.min.js"></script>
<script src="https://cdn.staticfile.org/vue/2.2.2/vue.min.js"></script>
<script>
  let v = new Vue({
    el:"body>div",
    data:{
        user:{username:"",password:""}
    },
    methods:{
      login(){
          axios.post("/login",v.user).then(function (response) {
              if (response.data==1){
                  alert("登录成功!");
                  location.href = "/";//显示首页
              }else if(response.data==2){
                  alert("用户名不存在!");
              }else{
                  alert("密码错误!");
              }
          })
      }
    }
  })
</script>

</body>
</html>